|Moon doesn't see Earth...|
There's a so-called justification for the con-gravity pro-electricity ELECTRIC UNIVERSE model of our Solar System that states, "Nothing can travel faster than light," such that the gravity wave holding elements of an orbiting system apart has to be false because the 'interaction of the two' can take place at no speed greater than c (speed of light, Einstein).
But then this would also apply to the (slower than E=mc^2 photon) electrons of the ELECTRIC CURRENT universe, too. In fact, it'd be even worse, even slower with electrons than photons, because of mass-drag...
But there's a solution for BOTH, "Gravity doesn't travel," even in an Electric Universe micro-di-pole version of planetary gravity or planet-star or planet-human gravity.
Gravity, or that which ensures that the system doesn't fly apart has to be SOLID STATE i.e. it's set up like an agreement or stability between the parties of the contract such that it 'doesn't need to be calculated per time-slice' as it's just there for all time slices of the life of that system. We need to start looking beyond the Planck length of calculation-progression and start looking at THE UNIVERSE AS A WEB of unity i.e. Universal Equilbirium - a Hertzan Chimera concept.
In fact, all the elements of any gravitational (or Electric Universe) system have no idea who or what their neighbours are. They're just cogs in a machine that has been set up laboriously via the 'construction of their medium'. Electromagnetic waves (of any flavour) are just the cogs turning, the net result of energy flow. The cogs themselves cannot be 'taken into account' or otherwise set-off against each other in some 'insane time-delayed maths war'. The Cogs have NO IDEA of the other cogs in the system. All cogs are BLIND to one another. It's the SYSTEM that is the medium, the system or structure of the universe, set up laboriously over long periods of time, is the solid state machine - no matter whether it contains highly-red-shifted glowing plasma objects or cold lumps of rock with humans on them.
Additionally, and my apologies to Wal Thornhill here, one cannot have an Electric Universe of instantaneous communication across the universe as he suggests because (while the cogs of the machine are technically DIMENSIONLESS, having no on-the-fly-calculation lag) they have no cognisance of their neighbours and a logical path could never be established to get any message from A to B through such a resonating machine.
The whole electro-cosmological machine could resonate with a message though... and it would be instantaneous, if undirectional - now, how to re-sonate the Whole Universe?
Finally: all photons are universed sized... but still slower than the medium or ether which transports them. The ether is the circuit, the photons are that which travel down it. Gravity is not the traveller, but the road. The agreed system already in place.